Nap-blowing attachment for clipping-machines.



H. B. MALLORY.

NAP BLOWING ATTACHMENT FOR OLIPPING MACHINES.

APPLIOATION I'ILIEID DEC. 15, 1911. Patented Feb. 11, 1913.

' ATTONEY inn sTA'r s a rnr FFICE.

HARRY B. MALLORY, 0F DANBURY, CONNECTICUT, ASSIGNOR T0 E. A. MALLPBY AND SONS, INCORPORATED, OF vDANBUR'Y, CONNECTICUT, A CORPORAJPION OF CON- NEGTICUT.

NAP-BLOWING- ATTACHMENT FOR CLIPPING-MACI-IINES.

To all whom it may concern. Be it known that I, HARRY B. MALLORY',

a citizen of the United Sta-tea, residing at clipping machines generally and especially adapted for use upon hat clipping machines,

.which'by means of films or thin sheets of air under pressure will raise the nap and place it in the best'possible'position for clipping just at the instant it is subjected to the action of the clipping mechanism. '1 am thereby enabled to clip the nap to a. uniform length throughout a hat body at a single operation and thus effect a great saving of time in the clipping of hat bodies, and produce better and more uniform'results than;

it has been possible to produce with any machine or attachment heretofore known to the trade. With these and other objects in view I have devised the novel blowing attachment which I will now describe, referring to the accompanying drawing forming a part of this specification and using reference characters to indicate the several parts. i j

' Figure 1 is a view partly in elevation and partly in section, on the line 1-1 inFig. 2, looking in the direction of the arrows, illustrating the application ofmy novel attachment to a clipping machihe; Fig. 2 a section on the line 2'-2 in Fig. 1, looking in the direction of the arrows; Figs. 3 and 4 are detail sectional views illustrating variations in the details of construction of the primary air delivering means; and Fig. 5 is a detail clipped, indicated by 15, is passed, feeding mechanism being omitted as it forms no.

portion of the present invention.

The gist of the invention lies in projecting primary and secondary films or thin sheets Specification of Letters Patent.

Patented Feb. 11,1913.

Application filed December 15, 1911. Serial No. 666,019.

of air upon the nap, in proper relation to the clipping mechanism. In its original form on the hat body the nap is in a confused, tangled state. The effect of the primary film or thin. sheet of air is to straighten out the nap and turn it in two directions leaving a line' of cleavage where the film of air strikes it. As the hat body moves toward the clipping mechanism,- the secondary film of air, which is projected backward under the clipping cylinder and parallel with the line of movement of the hat body,

causes the nap to stand upright, in which 3 condition it passes under the clipping cylinder. Both the primary and secondary air delivering or blowing means may consist of any suitable air receiver provided with a continuous slit or a line of fine openings through which the air issues under pressure in the form of a film or thin sheet. As a relatively heavy pressure is required for the primary air delivering means as well as adjustability of the volumeof air delivered, I preferably provide an elongated air chamber 16 to which air is supplied in any suitable manner as by apipe 17 provided with a valve 18. This chamber is closed at the,

bottom bymeans of a regulating plate 19 and an adjusting plate 20 having corresponding contiguousedges between which is a very narrow slit 21 through which the air issues under pressure in the form of a film or thin sheet extending the entire length of the chamber. The direction of movement of the hat body as seen in Fig. 1 is from right to leftf Upon certain kinds of work it is desirable that the film or sheet of air should strike the nap in a backward direction, as in Fig. 1. Under other conditions it is desirable that the film or sheet of air should strike the nap in a forward direction, as in Fig. 3, and under still other conditions it is found preferable that the sheet or film of air should strike the nap vertically, that is at right angles to its plane of movement, as indicated in Fig. 4. These different results are secured by varying the plane of the contiguous edges of the regulating plate and the adjusting plate, as clearly shown in Figs. 1, 3 and 4. The regulating plate is fixed in place. The adjusting plate, however, is madebodily movable toward or from the regulating plate in order to increase or diminish the width of the slit and consequently the volume of air in' the film or i or pipe in greater quantity than can escape sheet which is projected upon the nap. For this reason the holes 22 in the adjusting plate through which the screws 23 pass are shown as enlarged. It should be understood that upon some kinds of work, instead of a chamber with a continuous slit a pipe similar to pipe 29 (presently to be described) and provided with a line of fine openings, might ,be substituted and would accomplish approximately the same result.

In practice, air is supplied to the chamber therefrom"through the slit or holes under any conditions of use, so that a constant and relatively heavy pressure is always maintained. The chamber is shown as provided with longitudinal ribs 24; for strengthening purposes, the central rib being shown as provided witha wide top in order to deflect air entering from the supply pipe. Holes 25 are provided in the lower ends of the ribs to permit free passage of air therethrough so that air may reach all portions of the slit freely. In Fig. 2, I have shown blades 26 extending longitudinally of the chamber.

The function of these blades, which may or may not be used as found desirable, is to cause the film or sheet of air to issue from the slit obliquely in the direction in which it is turned. The blades may incline ineither direction as when it is'desired to project the film or sheet of air obliquely toward the brim or toward the tip of a hat.

27 denotes a uard which rests upon a washer 28 and 1s secured in place by the screws 23 that retain the adjusting plate. The function of this guard is to prevent air from slit 21 blowing into the face-of the operator. The secondary air delivering means as shown comprises a delivery pipe 29 provided with a line of fine openings 30 to which air is supplied by a pipe 31. This secondary air delivering means is placed in front of the clipping mechanism, in the present instance under the bed knife, and the direction of the film or sheet of air is backward under the clipping cylinder parallel with the table or shoe and at right angles to the nap fibers, the effect being to raise the inclined nap erect and against the knives of the clipping cylinder. As the nap has already been thoroughly straightened out by the action of the primary air delivering means, the function of the secondary air delivering means is supplemental thereto. It does not require as much air pressure but coacts with the primary air current to raise the nap into position to be properly acted 'upon by the clipping mechanism.

film or sheet and afsecondary air delivering means lying under the bed knife and coacting with the first mentioned air delivering means.

3. The. combination with clipping mechanism and a work-carrying table, of primary air delivering means whereby air is projected in a film orjsheet downward upon a nap passing over the table before it reaches the clipping mechanism and a secondary air delivering means lying in front of the table whereby air is projected against the nap as it is moving forward.

4. In a machine of the character described,

the combination with clipping mechanism,

of a chamber for air under pressure having a slit'in its lower end, means for adjusting thewidth of saidslit, for the purpose set forth, and a secondary air delivering means lying in front of and parallel with the clip ping mechanism.

5. In a machine of the character described, the combination with clipping mechanism, of a chamber for air under pressure having a slit for causing the air to issue therefrom in a film or sheet, and means for varying the angle at which the film or sheet of air shall issue substantially as described,

for the purpose specified.

6. An attachment for clipping machines comprising a chamber forair under pressure, said chamber being provided with a slit through which the air issues in a film or sheet and with means for regulatingthc width of said slit.

7. In a machine of the character de scribed, the combination with clipping mechanlsm, of means located in front of the clipping mechanism for dellvermg a1r in a. film or sheet backward under the clipping mechanism.

In testimony whereof I afiix my signature in presence of two witnesses.

HARRY B. MALLORY. Y

Witnesses:

Trros. J. BOWEN, HERBERT HENDLEY. 

